Contention reducing technique for a radio frequency communicatio

Cooperating arrangement for diversity stations

Cross polarization compensation system

Data capable radio communication console

Data transmission system

Determination of an initial launch time in a simulcast communica

Determining and displaying available services for a communicatio

Device for fixing the duration of waiting periods between attemp

Device for receiving radio call messages

Digital mobile communications system and method for providing in

Digital signal processor audio compression in an RF base station

Directional antenna arrangement method for simulcast broadcastin

Distributed supervisory control and data acquisition system

Diversity radio transmission system having a simple and economic

Diversity receiver using matched filter and decision feedback eq

Duplex power control system in a communication network

Electronic switching system for reducing noise transients

Equalization in a simulcast communication system

Fading simulation method and fading simulator

Fast response system for a fleet of vehicles